Abstract |
Exposure to ozone has led to airway inflammation and airway hyperresponsiveness, which potential mechanisms relate to ozone-induced oxidative stress. IL-17 is a growing target for autoimmune and inflammatory diseases. The aim of the study was to examine the inhibitory effects of anti-murine interleukin-17A monoclonal antibody (IL-17mAb) on adverse effects of ozone which are noted above. After C57/BL6 mice were exposed to ozone (2.5ppm; 3h) for 12 times over 6 weeks, IL-17mAb, PBS was intraperitoneally injected into mice 1h after ozone or air exposure for 6 weeks and mice were studied 24h after final exposure, monitoring bronchial responsiveness, airway inflammatory cells, lung histology, levels of neutrophil-related chemokine and proinflammatory cytokines in bronchoalveolar lavage (BAL) fluid and serum, the expression of IL-17A mRNA and protein, glucocorticoid receptors (GR), and the phosphorylation of p38MAPK in lung tissues. The administration of IL-17mAb reduced the ozone-induced increases in total cells, especially neutrophils; decreased levels of cytokines, including IL-8 in BAL fluid, IL-8 and IL-17A in serum; mitigated the severity of airway hyperresponsiveness; attenuated lung inflammation scores and histologic analysis confirmed the suppression of lung inflammation, compared with the administration of a control PBS. Exposure to ozone results in increases in IL-17A production rate, mRNA and protein levels of IL-17A and the protein level of GR. These effects were halted and reversed by IL-17mAb treatment. Furthermore, IL-17mAb also reduced the phosphorylation of p38MAPK. Therefore, we conclude that IL-17mAb may be a useful therapy in ozone-related diseases, including COPD.
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Authors | Min Zhang, Xia Fei, Guo-Qing Zhang, Peng-Yu Zhang, Feng Li, Wu-Ping Bao, Ying-Ying Zhang, Xin Zhou |
Journal | Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie
(Biomed Pharmacother)
Vol. 83
Pg. 247-256
(Oct 2016)
ISSN: 1950-6007 [Electronic] France |
PMID | 27380433
(Publication Type: Journal Article)
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Copyright | Copyright © 2016 Elsevier Masson SAS. All rights reserved. |
Chemical References |
- Antibodies, Monoclonal
- Antibodies, Neutralizing
- Cytokines
- Interleukin-17
- RNA, Messenger
- Ozone
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Topics |
- Animals
- Antibodies, Monoclonal
(pharmacology, therapeutic use)
- Antibodies, Neutralizing
(pharmacology, therapeutic use)
- Bronchi
(drug effects, pathology)
- Bronchoalveolar Lavage Fluid
(cytology)
- Cell Count
- Chronic Disease
- Cytokines
(blood)
- Emphysema
(blood, drug therapy, pathology, physiopathology)
- Interleukin-17
(genetics, immunology, metabolism)
- Male
- Mice, Inbred C57BL
- Ozone
- Pneumonia
(blood, drug therapy, pathology, physiopathology)
- RNA, Messenger
(genetics, metabolism)
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